Gearbox patriot Korean disassembled. Transfer case dymos UAZ Patriot

The UAZ Patriot manual transmission is designed to transmit torque and change the speed of the vehicle. The transmission design has an additional transfer gearbox with a reduction gear, which distributes the power flow between the drive axles. Depending on the year of manufacture of the car, a domestically produced transfer unit or a unit developed by the Korean company Dymos is used.

The Patriot car uses a 5-speed gearbox equipped with synchronizers for forward gears. The unit is connected to the engine by means of a clutch housing, a 1-disk dry friction clutch with a hydraulic drive is used to transmit torque from the motor. The choice of speeds is carried out by a lever mounted on the cover of the transmission housing, the handle is brought out through a hole in the floor of the body into the passenger compartment. At the end of the lever is a plastic tip on which the speed selection diagram is applied.

On machines assembled before 2005, there are 2 types of boxes:

unit assembled in Ulyanovsk ( gear ratio increasing speed 0.82);
Argear transmission unit developed by the Arzamas Machine-Building Plant (article 31606-1700010, gear ratio of the step-up stage 0.86).

Ulyanovsk boxes were used on the machines of the first batches, then the plant began to use the Arzamas unit, which is distinguished by the original gear switching scheme. To enable transmission reversing it is necessary to move the lever to the position opposite the 1st forward speed, and the 4th forward gear has been moved to the place of the standard reverse speed location.

Such an arrangement provides accelerated switching of the direction of movement when overcoming off-road by the buildup method. The safety interlock has been removed from the reverse gear circuit, which reduces the time for choosing the direction of movement. The transmission was not distinguished by high reliability and clarity of operation, which is why, since 2005, it was supplanted by the Korean Daimos checkpoint.

A brief sequence of disassembling the ArKPP unit from UAZ Patriot:

Remove the box from the car, and then rinse or wipe the crankcase from dust and oil drips.
Remove the stage selection mechanism from the side of the housing, and then unscrew the plug with the overdrive spring retainer.
Remove the rings holding the rear bearing of the output shaft from the seat. Loosen the 5th speed crankcase mounting bolts to allow the axle support to be removed.
Loosen the left-hand bolt holding back support intermediate shaft, and then remove the overdrive gear together with the needle bearing.
Remove the overdrive fork fixing screw to remove the drive link and clutch.
Remove the output shaft bearing together with the 5th stage driven gear using a puller. The puller is also used to remove the overspeed synchronizer hub from the intermediate axle.
Remove the front cover and remove the snap ring holding the input shaft bearing.
Remove the intermediate shaft bearing caps, and then pull out the axle and remove the reverse gear. To dismantle the gear wheel, a bolt is inserted into a threaded hole drilled in the end plane of the shaft.
Using a screw extractor, pull off the bearings mounted on the input and intermediate shafts.
Slide the intermediate shaft forward to allow the front rolling bearing to be removed.
Remove the primary and secondary shafts from the crankcase of the box as an assembly. Then dismantle the retaining ring, which will allow you to remove the intermediate axle.

Used since 2005, the Dymos gearbox is equipped with 3 shafts with gears, some of which move along the splines, providing gear shifting. An oil bath is located in the lower part of the housing, lubrication is supplied to the rubbing parts due to the rotation of the gears, which scatter liquid over the crankcase. The box has an overdrive 5th speed with a gear ratio of 0.88, which allows to reduce engine speed and fuel consumption when driving on the highway.

The box is distinguished by the use of the classic step selection scheme. To engage reverse gear, the fuse must be turned off. The unit has an increased clarity of switching, but does not tolerate loads well (for example, during long-term movement in severe off-road conditions). An additional advantage of the gearbox is reduced noise during operation, the improvement was achieved due to additional machining of the tooth surfaces.

The disadvantages of the unit include the destruction during operation of the rear oil seal, which violates the tightness of the crankcase. Transmission oil begins to go into the cavity of the transfer gearbox. Gears and rolling bearings in the main box, working in conditions of lubrication deficiency, begin to wear out. The resulting metal dust falls on the contact surfaces, accelerating the wear of the elements.

Damaged parts begin to make noise during operation, there are problems with the inclusion of steps, and spontaneous disengagement of gears is possible.

Causes of breakdown of the transfer case

The main reasons for the breakdown of the gear transfer case on the Patriot:

Natural wear of parts, leading to the destruction of gears or bearings. To restore normal operating conditions, it is necessary to remove the unit and check the condition of the parts; damaged components must be replaced. When installing gears, you should select parts according to the gap, which allows you to reduce the noise of work.
The use of tires of different diameters on the front and rear axles on the machine leads to difficult gear shifting. The cause of the defect may be damage to the gears, jamming of the spline connection or parts of the stage selection mechanism.
Worn gears and bearings lead to spontaneous shutdown of speeds. The defect occurs due to breakdowns of the lock of the selected gear or due to bending of the parts of the shift mechanism.
Worn gaskets or mechanical damage to the crankcase or covers lead to leakage of lubricant from the housing. Oil can seep through the rubber cuffs of the shafts, which eventually lose their elasticity and dry out.

Dymos transfer gearboxes use a chain drive and an electric shift drive. With prolonged movement with increased load, the chain is stretched and destroyed, which leads to the appearance of extraneous noise. If there is a problem with the electronic components, an error notification is displayed on the screen in the instrument cluster.

To clarify the cause of the message, computer diagnostics are carried out.

During operation, the box does not require adjustment, but the driver must periodically check the oil level in the crankcase. The operation of the unit is not allowed if foam or water is found in the lubricating fluid. Contaminated oil is drained through a regular hole, and then fresh grease is poured into the crankcase (in accordance with the requirements of the manufacturer). If oil leaks are found, it is necessary to disassemble the unit with replacement of gaskets or damaged covers, or fixing screws.

Difficulty engaging speeds indicates wear on the synchronizers or damage to the shift forks. Spontaneous knocking out of speed during movement occurs due to a broken clutch or due to wear of bearings or gears. To reduce the effect of wear products, it is necessary to carry out a scheduled oil change every 60 thousand km.

The drained liquid is checked for the presence of metal inclusions that enter the lubricant as a result of the destruction of gearbox parts.

To remove the Dymos unit with your own hands, you will need to follow these steps:

Drain the oil from the crankcases of the main box and transfer gearbox, and then disconnect the flange connection cardan shaft drive front axle.
Loosen the bolts securing the intermediate bearing of the rear propeller shaft. The drives are not disconnected from the bridges, the pipes are laid aside from the box and fastened with wire to the frame or suspension elements.
Disconnect the speed sensor plug and then remove the catalytic converter together with the protective screen.
After dismantling the clutch actuator and the intermediate parking brake actuator, it is necessary to remove the fastening of the front pipe. Then a jack with a board is placed under the crankcase, which allows you to remove the rear mount of the box.
Remove the cross member located under the box. Then you should lower the unit down, which allows you to separate the control levers of the main box and transfer gearbox.
Remove the reverse gear indicator plug, and then unscrew the bolts connecting the box to the engine crankcase. The transmission assembly must be pulled back and moved down.

Dymos box disassembly algorithm

The transfer gearbox is attached to the crankcase with 2 nuts and 2 bolts. Then the gear selection mechanism is removed, which is additionally fixed on the sealant. Inside the niche there is a bolt that is unscrewed with a ring wrench. To remove the back cover, you need to unscrew the screws located around the perimeter of the crankcase. On the side of the box is a bolt holding the intermediate shaft with the reverse gear, which must be unscrewed. The second shaft mounting bolt is partially unscrewed.

On the left side of the crankcase there is a plug, under which there is a spring with a ball. After removing the plug, it is necessary to unscrew the screws securing the input shaft trunnion (located on the side of the installation site of the clutch mechanism). Remove the retaining ring and pull out the ball bearing with a puller, which will allow you to divide the box housing into 2 halves. Then the previously loosened bolt of the reverse gear axle is unscrewed, which allows you to remove the part.

Using a thin screwdriver or an awl, the pins holding the shift rods in place are knocked out. Hang the crankcase cover with gears from the output shaft, and then heat the bearing seat with a burner. After heating the local area of the housing to 400°C, the metal crankcase is knocked off the supports. Then the shafts are disassembled one by one, which makes it possible to determine the degree of wear of the parts. After installing new elements, assembly is carried out in the reverse order, during installation, the position of the parts is taken into account and the tightening torque is observed.

In the all-wheel drive system of the UAZ Patriot SUV, there is such an important unit as a transfer case. This mechanism is necessary for the redistribution of torque between the drive shafts.

Until 2013, the Ulyanovsk manufacturer equipped its new UAZ Patriot mechanical transfer case. Then the developers decided to upgrade the drive. Among the main updates was the replacement of the regular handout with a more advanced Korean Dymos mechanism. But only the company is Korean here, and the production of the unit itself is carried out in China.

Our article will tell you about what the Daimos razdatka for UAZ-3163 is, where it will be considered design features node and the main advantages over the classical mechanical design. Let's talk about when repairs are required, during which the scheme is useful.

Transfer case features

The Daimos transfer case, which UAZ Patriot is currently equipped with, is a two-stage gearbox, where the gear system is placed in an aluminum case. The main transmission link in the unit is the chain, through which the moment is directed to the front axle. The transfer unit is controlled by a special electromechanical mechanism that allows you to select different driving modes.

For example, in a traditional manual gearbox, the role of the switch is a lever that the driver acts on by manual effort. Today, the specified lever has been replaced by a control washer, which is located between the seats. This regulator has increased the comfort of driving an SUV.

One of the main advantages that the new Daimos dispenser has is its ability to withstand increased loads. Besides, new unit added in size compared to its predecessor. This led to a change in the design of the cardan shaft rear axle UAZ Patriot, after which it began to be produced in one piece. Previously, this transmission element was a pair of hollow pipes that had an intermediate connection segment. Now this link (bearing) is missing, which favorably helps to reduce the level of vibrations and increases the resource of the entire mechanism.

Also, the design of the transfer unit made it possible to abandon many gears and shafts that were present in the old box. Now in the Dymos unit, the torque transmitter is a chain, which significantly reduces the noise of the mechanism as a whole.

Note that in order to increase the clearance, the manufacturer raised the new transfer case and fixed it as high as possible. Now the clearance is 320 mm.

To ensure the possibility of installing a Korean box in the UAZ Patriot drive system, the designers had to change the transmission tunnel. Its steel dimensions are larger. Due to the larger dimensions of the new dispensing unit, the developers had to abandon the manual brake mechanism. Previously, the handbrake blocked the rear cardan, and the mechanism itself was located near the transfer case. Now, special mechanisms are responsible for blocking the wheels, located in close proximity to the disks.

Ensuring better cross-country ability, since now the gear ratio of the main stage of the unit is 2.56 instead of 1.94, as it was on the old razdatka. The SUV has become able to confidently overcome obstacles when the Daimos transfer case is on it.
The new box is easy to manage. This became possible due to the presence of a progressive regulator, which the manufacturer placed on the central tunnel.
The absence of third-party noises that a mechanical dispensing unit could previously emit.

For the updated UAZ Patriot, an upgraded gearbox has become available. It was kindly introduced by the same company - Dymos.

Gearbox from Dymos on UAZ Patriot

The unit is equipped with a five-speed gear selection mechanism, which has proven itself on the positive side in terms of reliability. The box requires a minimum of care and is famous for its excellent resource. Despite the fact that the Daimos transmission and transfer case are combined units, the manufacturer has provided lubricants with different consistency for them.

To remove the transfer unit for the purpose of repair, it will be necessary to resort to the simultaneous dismantling of the transmission unit. A scheme is suitable for this purpose. Only after such a procedure will it become possible to disconnect the mechanisms. The units are connected by means of nuts. Between the cases there is a layer of sealant.

In the photo we see a Dymos transmission combined with a transfer unit.

If there is an interest in the technology of dismantling and disassembling the box, then it can be found here on the site.

Now let's talk about the types of malfunctions that are typical for the UAZ Patriot dispensing unit, and the reasons for causing them. It is likely that after the diagnosis, your car will need repairs, and a diagram will come in handy for this purpose.

Breakdowns and causes of the transfer case

Despite the fact that, in general, the Korean razdatka Daimos is a fairly reliable unit, the fact of the influence of various factors that cause malfunctions is still possible. What are these breakdowns?

The downshift in the box began to spontaneously turn off.
There was a leak of lubricant from the body of the unit.
There was a noise of the mechanism, accompanied by vibration.
The presence of traces of teeth crumbling and play in the bearings.
Reduced chain tension.

What causes such malfunctions? The reasons may lie among the following factors:

The components of both the transfer case itself and the transmission unit were worn out.
The owner is inclined to drive for a long time with the front axle activated, having no need for it.
Systematic impact of increased loads caused by improper operation of the dispensing unit.
The use of a lubricant that does not fall under the manufacturer's regulations.
The mounting of the motor pillows has loosened or these components have become unusable, which will be indicated by vibration at startup.
Prolonged exposure to vibrations, which can be caused by incorrect tire pressures or other factors, including driveline wear.
Incorrect modifications of units in the UAZ Patriot drive system.

When the indicated signs appear, the owner of the UAZ Patriot is recommended not to delay the diagnosis of the drive for a long time, but to take measures to identify malfunctions as soon as possible and eliminate them. And if repairs are required, the scheme will help in this matter.

Summing up

Let's bring important information! Some owners set out to replace the old razdatka with a new unit. Is it possible to do so? It is possible to install a Korean node on a UAZ Patriot, but some work will be required. Repairs can be carried out independently, this will help the scheme. Here it is necessary to replace the tunnel casing, cardan gears, transmission unit frame cross members, handbrake drive mechanism, electrical wiring and fuel lines.

Problem: when driving, if you quickly put in 3rd gear, you can hear (and feel it on the handle) a noticeable crunch. If you stick slowly and carefully, then without a crunch. And the more you push the lever, the stronger the crunch. And the slower the greater the likelihood of a perfect gear shift.

Diagnosis: worn out synchronizer. To replace, you need to throw off both boxes and disassemble.

(For one I will replace the noisy promval bearing)

for support we use a wide cable and hoist

removing the transfer case, as it turned out, is not at all difficult even without a hole, we unscrew the bolts, pull it and it falls,
you need to put something soft on the floor, because it’s impossible to hold 40 kg in a twisted state under the car

the box is even easier to remove because it hangs on chains, it can be gently lowered

box dymos

Razdatka UAZ

I will lower the transfer case to 3.3 but later, so I took it apart to see the number of splines on the shaft, since there are options for 12 and 18 splines, a lowering kit is made for the option with 18 splines

To pull off the washout bearing is, I must say, a test for the nerves. At the beginning I tried to weld that
then to the bearing and pull it off, but the welding broke. My recipe is this: we take two long bolts, file the hats with a grinder, on the sides to make an oval, break the separator in the bearing, put the boots into the bearing and wedged. then press out with a puller

In the box itself, I haven’t removed the stars on the shaft yet, I just bought a three-legged puller today, so to be continued, criticism and advice are very welcome, since I myself am repairing the box for the first time. no repair experience yet.

We continue the repair, for pressing out the gears I used a three-legged puller (bought for 600r). I dismantled everything in about half an hour, everything turned out to be simple

4th gear synchronizer, thickness 3mm exactly

3rd gear synchronizer, apparently worn 2.85 mm

maybe these 0.15 is enough for a bad inclusion

The 2nd and 3rd gear synchronizer needs to be replaced. To my surprise, this detail was not found in our city. I got into the Internet, I know only 3 spare parts stores that 100% do not throw uazobaza.ru, bazashop.ru and 3160.ru. These parts are not in them! I searched with Yandex, (I can do this) those stores that he shows did not inspire confidence, the phone number and address were simply not specified, I'm afraid of a scammer. For example: www.uazlyuks.ru/index.php...t/product&product_id=1630 the site is generally made in the ukoz constructor, I myself can cut it down in a day.
In short, the question is simple: who ordered spare parts via the Internet and in which store? Give me a link, and I'll look for a sync there myself. And then there were incidents. Thanks in advance.

So so. the problem was as follows, when driving, if you quickly stick in 3rd gear, you can hear (and feel it on the handle) a noticeable crunch. If you stick slowly and carefully, then without a crunch. And the more you push the lever, the stronger the crunch. And the slower the greater the likelihood of a perfect gear shift. The diagnosis is simple, the synchronizer has worn out. To replace, you need to throw off both boxes and disassemble. For one I will replace the noisy bearing promvala.

the box is even easier to remove because it hangs on chains, it can be gently lowered

UAZ Patriot 2008, petrol engine 2.7 l., 128 l. p., AWD drive, Manual - DIY

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Comments 41

Hello, tell me how you removed the input shaft without removing the output shaft gear? Does it hit the gear?

with the help of this puller, I was only able to remove the bearing from the input shaft. For about 4 hours I “cared” it with a “make” with a sledgehammer in a suspended state and nothing, it dispersed by a centimeter and that’s it. I bought a bearing for the input shaft, now it remains to find the front bearing on the industrial shaft and everything can be put together.

Russian ingenuity is our EVERYTHING.

Good day. The problem is this: the transmission began to turn on with a crunch. from the second to the third with a crunch, from the third to the second with a crunch, from the second to the first it turns on almost to a complete stop, you stand at the transfer point, everything turns on without a crunch, what is the reason? I replaced the clutch kit with a STARCO with a double damper, the gears also turn on with a crunch, in the mornings, while the cold one warms up quietly, the clutch starts to rumble harder than on the old one, you squeeze the clutch pedal quietly and release the rumble again. Where to dig roofing felts clutch roofing felts checkpoint? Hunter ZMZ 514

We don't do abortions online.

Hello good people ... my problem is this: the diamonds checkpoint began to make noise + buzz on a UAZ patriot 2008 onwards. decided to disassemble and change the bearings. Changed four main bearings. After assembling the gearbox, the noise + hum disappeared ... but a knock appeared ... the gearbox knocks at idle and in all gears ... but when the clutch is pressed, the knock disappears and the clutch release and the clutch disc put new ones ... please tell me what could be? Thanks in advance

what was the cause of the knocking?

I also have a new one. I switch a little slower and that's it

maybe it should be?

I have an escape of 166tyk with a penny, I climbed everywhere except for the checkpoint, I use it mercilessly, without embarrassment, sometimes it also crunches, in any gear, but this is from a hasty shift and underpressure of the pedal. And until the stake rises, I won’t climb, because The gearbox is the most accurate and with minimal tolerances unit of everything that is in the car.

What a tin… It's on new car? How much mileage?

she is not new)) 72

about how. questions such, all at once so that later on a new one does not climb?

Exactly. I regretted that I did not change everything at once, stinted on the price. Now I'm waiting for spring to shoot the korobas again and bring it to mind.

Congrats on opening the box. The procedure is painfully familiar and hemorrhoids! That bearing that you worked so hard to remove is the input shaft bearing. It was possible not to touch it, but simply remove the bell, and the bearing itself would remain on the shaft. Now the next thing, if you climbed there, then change all 4 bearings at once, namely on the input shaft, which you removed at the very beginning. Bearing-gland between the box and razdatkoy and two conical bearings of the prom shaft. And change synchros 1-2 and 3-4 gears. If there are any questions, ask.

Greetings to all, where did you buy spare parts for the synchronous box, gears?

I took a normal flight from a guy here vk.com/kppdaymos

Aren't the old synchros left by chance? Do you have sizes of bronze rings?

So the checkpoint is on the workbench. Where to begin? Now, I would start by screwing this gearbox back on and never mess with it. Joke type. However, every joke...

All the same, you need to start by studying the only manual for repairing daimos that currently exists: tynts (third-party resource).

After studying this crooked manual, and it is really crooked, you will begin to have a vague feeling that you still cannot characterize in any way. Later, yes. But not right now. Everything is rosy now...

Unscrew the cover of the gear shift rod. Please note that all joints are flavored with a sufficiently high-quality sealant, and the screws sit on the thread sealant. Therefore, the process of separating the penetration from the non-piercing is difficult in most cases.

Along the way, we inspect the rubber boot of the switch rod.

Then, with a 24 spanner, unscrew the reverse gear engagement sensor.

Please note that it is sealed with a copper washer. According to science, they are disposable and when the sensor is put back in place, the barrel changes to a new one. Otherwise, oil leakage is possible.

We return to the box of the stock switch gears. We unscrew this bolt that closes the technological hole. It serves to unfasten the stem.

To my shame, I must admit that until that moment I had not yet had a normal set of drifts. And instead of punches, I used old, unnecessary, not beautiful, and for any reason, only known to me, guilty drills of a suitable size.

This is how we knock the pin out of the stock.

We also pay attention to the thread sealant and the copper washer.

Now, we unscrew the three bolt-covers from the wells of the locking rods of the speed changers. It also has thread sealant.

We stock up on a small magnet and use it to pull out the springs and locking balls. As an alternative, roll over the gearbox housing with the holes down and lightly tap ...

That's all for now with the rear of the gearbox. Let's go to the bell.

Unscrew the front cover. I entrusted this business to the younger generation 😉

When the cover is unscrewed, this does not mean that it can be removed easily. Because the sealant stuck it well enough. It is extremely convenient to pick up the edge of the cover with a long flat screwdriver, through the starter hole in the bell and pry off the cover with a lever. Along the way, we evaluate the condition of the gland in the cover.

Now a small Kama Sutra with the removal of the retaining rings. I don’t know how anyone, but they were very dreary for me ... And this is with a normal tool for removing them ...

In general, after the retaining ring is removed from the input shaft in the area of \u200b\u200bthe front support bearing, the manual says this phrase: "Remove the bearing from the shaft."

This is the first place where the break of the namba van pattern begins. For bearing:

flush and flush
closed type
sits not just tight, but VERY tight ...

In general, in fact, it is not necessary to perform the "Remove the bearing" item at this stage. Take my word for it. Although ... If you have a tendency to masochism, then by all means try it. I guarantee the result!

I came to the conclusion that it is necessary to halve the gearbox housings without removing the bearing.

We unscrew dofiga bolts around the perimeter of the joint. Please note that there is another screw in the gearshift box, above the stem!

I must also say that the halves sit very firmly on the guide bushings. There are only two of them, but it’s still impossible to easily separate the halves. Plus, there is a strong sealant, be it wrong. In general, when you have a gap, carefully increase it with improvised means until you rest. And you will stumble! The gap will be about a centimeter and a half in size.

From this moment on, the break of the namba tu pattern.

The bottom line is that the front support bearing sits VERY firmly on the input shaft. And, of course, it prevents the gearbox housing from being cut in half.

From the photograph, the essence of the process is clear. We hang out whoever can in their conditions. We take a piece of soft material such as copper / aluminum / duralumin. This piece will be a spacer between the end of the input shaft and the popularly loved universal key, the Earth-to-Earth class, the Sledgehammer type ...

We put a gasket made of soft material on the end of the input shaft. With the help of the mantra “How great is my love for the fucking Chinese engineers”, the memories of a certain mother and the reciprocating movements of a special key of the “sledgehammer” type, we separate the bell with a support bearing from the input shaft.

Exactly after this stage, the bearing can be easily removed by hand from the seat in the bell, which will be on the floor 😉

Back to filet...

To remove the rear gearbox housing, it is necessary to remove the pusher rod of the gear shifters. To do this, it needs to be pinned. Attention! There are two short pins, not one long one like on the shift forks.

Unscrew the second bolt securing the reverse gear axle.

And remove the retaining rings from the output shaft shank. Remove the retaining crescents and remove the retaining ring from the output shaft double support bearing.

At this point, you will be waiting for a break in the template number s…

Because the manual says that it is necessary to unpin the shift forks and shift pushers. How this is supposed to be done when a good half of the pins are in the depths of the crankcase is not clear. But, if we remember that Chinese electricity has not yet been studied at all, then it’s even scary to think about Chinese mechanics ... Qigong is there, Shao-lin and all that ...

In general, we tie all the offal as is and hang it again. We try to adjust the suspension so that the belts do not put pressure on the 3-4 gear shift clutch and the axis of the shafts is as perpendicular as possible to the mother earth plane. If you move the clutch more than usual, then an amazing adventure is guaranteed to search for the catapulting synchronizer balls in the amount of three pieces. Again, for masochists, the next stage in delivering unforgettable pleasure to themselves ...

Then we need to heat the crankcase around the double bearing. I used a prom.hair dryer for this. The temperature is 500 degrees, for five to ten minutes. So that the crankcase would be overheated. Then, with reciprocating movements of the rubber mallet of the “Narcosis” class, we present the crankcase case. The duration of the execution does not depend on anything and is purely random. Tested on a triple assembly / disassembly of the assembly (then I will tell you why) ...

Attention! In the gearbox housing, in the area of the partitions of the rod wells, there are two plungers. Don't lose them when turning the crankcase over. You won't find these later!

If you have not catapulted balls out of sync - you are lucky. At this stage, you can pour yourself 100 grams of good cognac and postpone further work for “Morning, wiser evenings” ...

Take my word for it 😉

Dear my readers!

Do not ask me questions about the repair of your gearbox please! Firstly, I cannot and do not have the right to give advice without seeing the unit with my own eyes and without holding it with my own hands. Secondly, it is approximately how to make a diagnosis over the phone. No analyses...

This blog post is for informational purposes only. Its purpose is to show you clearly the giblets and general methods of working with this checkpoint. No more.

26 thoughts on “ UAZ Patriot. Disassembly of the checkpoint "Dymos" (Daymos). ”

Please tell me this Korean crap has its own handout or you can shove a simple UAZ one just the guys gave me a loin and I don’t know if it’s worth bothering or not

At this checkpoint, both the old-style RK (UAZ) and the new Daimos were used.

Hello. when landing in place of the secondary shaft of the promshaft and rods with forks, one of the rods does not sit down to the end. Apparently, the pin blocking the inclusion of two speeds at once interferes. What should I do?. (I did not unpin the third gear plug).

Ilya, hello. If you yourself do not see or are not sure of the reason (“apparently the pin interferes), then how can I answer you? By the Internet. I don't see the unit.

Hello. I got a noise in the box like a tractor. I checked the oil, it wasn't there. Then they opened it and where the gears of the 1st shaft were like a knife. And the gear of the block is exactly the one that connects to the 1st one, it was covered on one side. And we found a box with a whole body of a burnt Oise that was driving only 2 months from the salon. And they opened this box and removed from it the 1st shaft and gear block. All gathered in place put a box. 1) The sound there has decreased by 80%. 2) the speed on the 4th is inserted tightly)) 3) it is inserted into the rear spruce and when you release the turnover, it immediately ejects. I have such a problem. Do you have a full video overhauls or some advice?

According to the video, only what was posted in the reports. And I can't give you advice. Because I didn’t twist your box with my hands 😉

Thank you for a very good report, the conclusion when reading is unambiguous ... In case of breakage of the daimos box, buy a new box)))
And so I was looking for where are the most, well, which can be brought under the hood. Just found you, thanks.

Hello, where can I buy a 3.4 gear shift fork Daimos? Patriot 2005.

REPAIR of UAZ gearboxes of all models (ADS, DAYMOS)
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Disassembly and troubleshooting of your gearbox is carried out within 2 hours in your presence.
The cost of disassembly and assembly - 5000 rubles. + spare parts subject to wear.
Removal and installation of the box on the car /during repair/ - 7000 rubles.

Warranty 3 months or 60,000 km. run.

New UAZ gearbox

We have a fund restored UAZ checkpoints. If the car owner wishes, we can replace the faulty one with ours from the exchange fund, which is often more cost-effective.

Prices for additional work when repairing a UAZ gearbox:

Job Title

Sum

Complex troubleshooting (dismantling assembly without repair)

Oil change and diagnostics

Clutch replacement (as a separate job)

Removal and installation of a manual gearbox as a separate work - without repair

Replacing the clutch with the gearbox removed

An example of assembly disassembly of the UAZ ADS gearbox

The owner of the car drew attention to the harsh noise that appeared when driving on the highway in fifth gear. During disassembly, the following was found and must be replaced: a damaged intermediate shaft, a set of bearings, a fifth gear fork, oil seals, an inter-case gasket. An example in the photos below:

The second example of the UAZ ADS box - the owner also complained about harsh noise when driving in fifth gear. When disassembling the gearbox, a broken gear tooth of the fifth gear was revealed (the intermediate shaft is intact). Plus, bearing shaft bearings and seals are subject to replacement. We wash the inside of the body with nefras (industrial solvent) to remove steel chips and old oil.

UAZ gearbox diagram
gearbox assembly

gearbox housing uaz

UAZ transmission gears

UAZ gear selector forks

linkage gearbox uaz

razdatka gearbox uaz assembly

UAZ transfer case gears

UAZ transfer case shaft gear

UAZ transfer case gear selection

Gearbox UAZ 3151 (after overhaul).

Replacing bearings and seals gearbox.

UAZ gearbox specifics: typical faults and features of repair

Functional differences between ADS and Dymos checkpoints

Technical features of the UAZ BUHANKA gearbox

Advantages and features of the UAZ FERMER checkpoint

The specifics of the transfer case of modern UAZ modifications

Photo report of disassembly and repair of the UAZ HUNTER gearbox

The car was sent in for repairs due to the harsh noise from the manual transmission. As a result of disassembling the box, a defect in the bearing bearings on the gearbox shafts was revealed. We change bearings, gearbox seals. We wash the gearbox housing with nefras from inclusions of steel chips and old oil. Photos below.

The gearbox is considered a mechanism designed to change the frequencies and torques of the drive wheels within increased limits. box with mechanical transmission most often serrated.

Manual transmission modern domestic cars is a convenient and reliable unit that cannot avoid the prospect of wear or the impact of negative factors. Most often, motorists have to deal with the following gearbox malfunctions:

⦁ spontaneous shutdown low gear and boxes - the device uncontrollably returns to neutral mode;

⦁ the occurrence of an oil leak;

⦁ the appearance of an extraneous sum, hum, rattle or vibration;

⦁ crumbling of bearing teeth;

⦁ malfunctions of bearings or deformation of springs;

⦁ loosening chain tension.

All of the above negative factors are a direct result of long-term operation of the car without proper maintenance. An aggressive driving style, which involves jerky gear changes and rough handling of the lever, can significantly speed up the process of responsible wear of gearbox mechanisms. A reliable car service will allow not only to quickly identify the cause of the breakdown, but also to comprehensively fight to overcome it. Selling a gearbox allows a motorist to radically get rid of problems - buy a manual transmission and install a new mechanism.

Transmission failures usually develop as a result of:

⦁ Significant wear of parts due to oil starvation of the gearbox.

⦁Long trips with the first bridge turned on unnecessarily.

⦁Jerky and aggressive transmission operation - jerky shifting or abrupt transition to neutral.

⦁Use lubricants, which are incompatible with a certain manual transmission or are not intended for this mechanism at all.

⦁Unskilled maintenance - unauthorized overhaul of the gearbox can cause poor-quality twisting of the mechanisms.

⦁ prolonged exposure to vibrations or loads as a result of inaccurate use of the gearbox.

⦁Installation of parts that are not compatible with a specific gearbox modification.

⦁Installations of used or non-genuine parts.

⦁ Lack of regular checkpoint diagnostics - it is worth checking the condition of the box after overcoming the first 50,000 km of run.

⦁ Unprofessional vehicle maintenance.

Despite the fact that the gearbox is not considered a fragile mechanism, it needs careful and careful use and timely technical inspection. Early diagnosis of problems and identification of their causes will allow the life of the entire mechanism to continue due to the local replacement of worn parts.

Top 5 UAZ manual transmission malfunctions

In the process of active exploitation of the hardy modern car its systems wear out sooner or later. The motorist will have to say goodbye to bearings, synchronizers, oil seals, couplings, pumps, transfer cases, center differentials, gear shift forks, rods and others. constituent parts. At the same time, the choice remains with the owner himself: to re-buy a gearbox or locally replace worn-out mechanisms to continue the service of the original gearbox.

The manual gearbox of a UAZ car usually encounters such malfunctions:

⦁ Poor fixing of the gearbox to the crankcase - this negligence is fraught with spontaneous disengagement of the forward gear, which is especially dangerous under heavy shock loads. Usually, loosening occurs during clutch replacement or oil topping up.

⦁Sharpened synchronizer teeth, which can cause jerky or difficult shifting.

⦁ Worn bearings and faulty rod retainers - they can cause spontaneous disengagement or gear shifting.

⦁ Worn gear teeth, which can lead to problem shifting and the appearance of knocking or grinding during mode switching. This defect needs a comprehensive solution, the implementation of which is facilitated by the sale of manual transmission. Installing a new box will provide the gear teeth with uniform abrasion as a result of the planned load.

⦁Oil problems - this general group of malfunctions is caused by the use of poor-quality lubricant, insufficient oil, or its inconsistency with a certain modification of the gearbox.

Despite the fact that most of the listed faults can be quickly eliminated by a local method, qualified specialists from proven service stations still advise motorists not to crowd and carry out a comprehensive replacement of worn parts or even install a new gearbox.

A quality service station is characterized by:

⦁ the presence of its own store with original spare parts and mechanisms - the sale of gearboxes allows the motorist to immediately abandon local repairs in favor of a new mechanism;

⦁use of high-tech equipment;

⦁ specialists with many years of practical experience;

⦁ high quality diagnostic equipment;

⦁opportunities for prompt and high-quality exchange, sale and installation of all modifications of gearboxes and other UAZ mechanisms.

Modern auto centers are a whole maintenance complex that provides disassembly, troubleshooting, replacement or repair of boxes of all types, manufacturers and modifications.

Tools for dismantling UAZ gearboxes

A qualified gearbox repair is based on a thorough and coordinated preparatory process. Initially, the specialists of the auto center carried out diagnostics to identify the essence of the malfunction and find its cause. The data obtained are the basis for the development of a competent repair plan, which is subject to prompt and high-quality implementation.

During the repair process, it is important to dismantle the gearbox. Sometimes repair of a box of a UAZ PATRIOT IVECO car or another popular model comes down to replacing worn parts and topping up transmission oil. That is why the dismantling of the manual transmission must be competent and extremely accurate.

The manual transmission overhaul will allow you to determine the cause of the malfunction, so the importance of high-quality dismantling is difficult to overestimate. It is difficult to imagine the careful removal of a manual transmission of a UAZ car without the following set of tools:

⦁Sets of socket or open-end wrenches and a wide range of sizes (from 10 to 36).

⦁ A special wrench to be used to work with flattened nuts. For this case, non-professionals often use bicycle keys.

⦁ Flat and Phillips screwdriver sets.

⦁ Pliers - service keys with curved or straight tips.

⦁Copper rod (rod for working with gears).

⦁ A small piece of metal pipe to hold the nut when screwing each nut in a hard-to-reach place in the gearbox.

⦁High-quality imported sealant, without which it is difficult to imagine a tight and reliable installation of gaskets, which will not allow mechanisms to wear out prematurely.

All of the listed tools are a must-have set for both a professional specialist and a novice master who will repair the gearbox or replace worn parts. Attention to the tools and the preparatory process as a whole will allow you to make repairs mechanical boxes a well-coordinated, high-quality and qualified procedure that will return the car to its former safety, maneuverability and ease of control.

The procedure for dismantling UAZ 3151 gearboxes depends on:

⦁ car models - UAZ has three gearbox options, each of which is characterized by its own design features;

⦁ reasons for the breakdown - if the breakdown is very serious, the specialist should quickly get rid of the broken gearbox for a qualified installation of a new gearbox;

⦁ preliminary diagnostics.

The dismantling of gearboxes is considered the second stage, without which it is difficult to imagine a modern qualified repair of manual transmissions of all UAZ models.

Functional differences between ADS and Dymos checkpoints

The UAZ multifunctional off-road vehicle is equipped with a high-quality five-speed manual transmission, which has two main improved versions - ADS and Daimos.

A five-speed manual transmission is produced at the Ulyanovsk Automobile Plant to ensure all basic models domestic SUVs. That is why the box is characterized by a one-piece crankcase and synchronization in all front gears. The first box appeared on the UAZ Patriot car, however, then other models could appreciate the advantage of this production modification. So, use high-tech manual transmission owners of Simbir, Hunter and UAZ-3160 can.

Box ADS transmissions characterized by the following features:

⦁Smooth functioning of the mechanisms due to the lengthening of the gear lever - with a calm or professional driving, the driver may not apply for gearbox repair for at least 5 years.

⦁Available return spring mounting bracket for faster and easier mounting of the gearbox.

⦁Change general scheme gearboxes and selective device - modifications have become the reason for preventing oil leakage and ensuring safe gearbox casing.

⦁The presence of a special sensor for uninterrupted power supply of the rear lights.

⦁Offset filling port by 2 cm - this minimal modification has improved circulation oil-lubricant and prevent it from flowing.

The manufacturer followed all the canons of modern high-quality manual transmissions, and at the same time tried to minimize the influence of negative factors on the mechanism as much as possible. Thanks to the standard structure, the diagnosis and overhaul of the manual transmission will become quick and easy procedures.

The Korean company Daimos offered its improved gearbox to Russian manufacturers in 2013. The main difference between the checkpoint and the domestic version is the presence electrical control, whereby drivers can completely abandon the use of the usual manual shift lever.

Daimos gearbox has the following technical characteristics:

⦁Using a built-in special washer instead of the usual manual shift lever. Thanks to this regulator, driving a domestic SUV has become pleasant, comfortable, easy and smooth.

⦁ By changing the rear driveshaft - the absence of an intermediate support and the taming of the shaft.

⦁ The presence of a solid cardan rear axle.

⦁ The absence of an intermediate bearing, since the rear axle cardan has become a one-piece mechanism that does without gaskets.

The UAZ PATRIOT IVECO car has a mechanical five-speed three-shaft gearbox from the Korean company Dymos, which contributes to the accurate and safe movement of the car and complete control over it even on an icy track or off-road.

This gearbox can be considered modern and high-tech equipment that is not subject to rapid wear even with an aggressive off-road driving style. Korean manufacturers remain true to their style - they are always ready to offer motorists reliable mechanisms.

The UAZ transfer gearbox is characterized by a two-stage mechanism, which is complemented by an aluminum housing. This mechanism is based on a chain drive for transmitting torque to the front axle.

The modified razdatka UAZ is distinguished by the following changes:

⦁ Amazing endurance due to the absence of the usual gear lever.

⦁ Reducing body vibrations due to the absence of an intermediate bearing in the rear axle cardan (this mechanism has become one-piece).

⦁The design of the new transfer case is based on a chain drive.

⦁ The absence of a handbrake brake mechanism - the additional braking device is now located on rear wheels, like most modern models of off-road vehicles and endurance.

The UAZ transfer gearbox is a modern and modified set of mechanisms that made it possible to achieve maneuverability and smooth movement of the car even by an inexperienced driver. Due to technical improvements, the transfer case made it possible to prevent oil leakage, the appearance of vibrations or knocks, and excessive wear due to strong shock loads.

The gearbox for UAZ vehicles is produced by both Korean and Russian manufacturers. Both options are modern, reliable and quality. However, they differ significantly in technical content. Repair of mechanical transmissions from two manufacturers is a process of quickly replacing worn-out mechanisms and topping up oil.

The DYMOS gearbox is without any doubt an attempt to create a high-quality and reliable gearbox that is at the junction of manual and automatic transmission. While the ADS gearbox is aimed at maintaining the original technical characteristics of the gearbox of the UAZ HUNTER car (and other models) and making it more comfortable, smooth and easy to control.

Technical features of the UAZ BUHANKA gearbox

UAZ BUHANKA is considered an all-wheel drive utility vehicle, which appeared on the domestic market. automotive market way back in 1965. For half a century of history this car became multifunctional and versatile - it was used to transport goods, meet the needs of the army and deliver patients to hospitals.

The UAZ BUHANKA gearbox performs a fundamental and responsible task - it monitors the indicators of the variability of the magnitude of the engine torques and transfers them from the engines to the drive wheels.

The four-speed gearbox UAZ-452 and other models is characterized by the following features:

⦁ the presence of inertial synchronizers for engaging and shifting gears without extraneous noise or rumble - synchronizers help to equalize the speed of the teeth that are connected before engaging;

⦁one-piece cast-iron crankcase, which is the place of installation of the primary, secondary and intermediate shafts;

⦁ helical gears of the intermediate shaft drive;

⦁ the presence of two plungers as a locking mechanism against accidental or deliberate engagement of several gears at the same time;

⦁four forward modes with the following gear ratios: 4.12; 2.64; 1.58; 1.00.

Despite the fact that the manual gearbox is prepared for high loads, it cannot do without planned and qualified repairs. The need for repair is usually the result of such negative factors:

⦁Using a car in extreme conditions - UAZ 469 does not tolerate constant aggressive driving and operation only off-road or in icy conditions.

⦁ Operating a car with a faulty clutch - ignoring this breakdown can cause an emergency.

⦁ The use of low-quality oils for the drive axle - experienced car center specialists advise car owners to follow the manufacturer's recommendations so that the car stays in service for as long as possible.

⦁ Unprofessional or untimely maintenance - despite the fact that the UAZ is a hardy car, its repair should not be left to the hands of non-professionals. So, the sale of a gearbox allows you to solve half the problem - the correct installation of the gearbox is important.

If the use of a gear crust is accompanied by extraneous noises or rattles, the car owner should send his car for diagnostics and carry out a prompt repair of the gearbox. If the diagnostics did not reveal serious breakdowns, the cause of the unpleasant rattle may lie in worn bearings and gears. The quick replacement of these parts will again make gear shifting quiet and comfortable. To update the entire mechanism, auto centers often offer to buy a gearbox.

Worn synchronizers may "beg for a replacement" when a motorist has to deal with tight or jerky gear changes. The wear of synchronizers can be both planned and extraordinary. The second type of malfunction is usually caused by a critical decrease in the amount of oil in the crankcase.

Leaky gaskets should be replaced using imported sealant - it is of better quality, reliable and proven.

Repair of gearboxes should be a complex, well-coordinated and qualified process, which is based on thorough diagnostics, troubleshooting, building a competent repair plan, preparing parts and polishing mechanisms.

The smooth operation of gearboxes depends on the use of quality lubricants in sufficient quantities. The minimum amount of oil can cause increased wear on gears and synchronizers, which may require attention with jerky gear changes or willful activation of neutral mode.

Advantages and features of the UAZ FERMER checkpoint

UAZ FERMER is considered a cargo-passenger all-wheel drive vehicle, which is characterized by comfort, versatility and increased cross-country ability. The people called the UAZ-3909 model "FARMER", because in this car you can safely fit the driver, 7 passengers and plus 450 kg of cargo in an isolated cargo compartment.

Full cross-country ability, spaciousness and reliability make this car a universal assistant in the field, fishing or hunting.

The presented model has a four-speed manual transmission, the mechanisms of which are remarkably resistant to wear. The first signs of abrasion of synchronizers and gears appear only after 70,000 km of run. At the same time, the repair of mechanical gearboxes is reduced to the replacement of worn parts.

The gearbox of this model is characterized by:

⦁Long stroke when engaging first gear.

⦁Two plungers and a pin at the junction of 3rd and 4th gears to block the inclusion of two modes at the same time.

⦁Spring-loaded fuse that prevents accidental engagement of reverse gear.

⦁ Interchangeability - components and parts of various four-speed gearboxes are interchangeable.

Transmission malfunctions of this model are usually expressed in jerky gear shifting, unauthorized transition to neutral mode or knocking of the box. These malfunctions are provoked by irregular and poor-quality maintenance, lack of quality oil in the required dosage or by abrasion of the mechanisms.

The driver's inattention to the abrasion of parts can cause premature wear of the entire gearbox. In this case, the driver will have to buy a gearbox and contact the service station to dismantle the old gearbox.

The specifics of the transfer case of modern UAZ modifications

The transfer case allows you to distribute the torque from the engine, so this mechanism is a mandatory unit for all-wheel drive vehicles, which include all UAZ modifications.

helical transfer case for serial production The Ulyanovsk Automobile Plant for the first time offered the UAZ SIMBIR car. The peculiarity of this mechanism is the presence of helical gears for transmitting torque to the front axle of the car. The use of this technological modification allowed the manufacturer to get rid of general level transfer case noise and make it more durable. In the low gear mode, the noise level remained at the same level, since the manufacturer left the spur drive gear for engaging the reduction and direct gear.

Ulyanovsk plant introduced motorists to small-tonnage truck UAZ-2360 (CARGO) in 2002. Given that this modification is based on the UAZ SIMBIR platform, its transfer case has a similar configuration.

The UAZ CARGO car is characterized by the following features of the transfer case:

⦁ replacement of ball bearings with roller ones to significantly increase their load capacity;

⦁compatibility with engines whose torque is up to 30 kg × m;

⦁ reduction of noise level to 8-10 dBa due to the use of helical gears;

⦁ minimum maintenance - the transfer case only needs timely replacement of the lubricant according to the operating instructions.

The gearshift mechanism on the UAZ PICKUP car, as well as on other trucks of the PATRIOT family and HUNTER models, remains single-lever - it provides for the sequential engagement of the front axle, and then neutral and downshifts.

The UAZ transfer case is mechanical and two-stage, it does not have center differential, but there is the possibility of disabling the front axle.

The helical razdatka is characterized by the following fundamental features:

⦁ Downshift ratio - 1:94.

⦁ Centering on the outer race of the double-row bearing of the gearbox output shaft.

⦁Parking brake mechanism on the rear of the transfer case housing.

⦁ Torque transmission to the drive shaft.

⦁When the front axle drive is engaged, the shafts are connected using a gear coupling.

⦁Mounting the intermediate gear on the intermediate shaft.

The use of a helical transfer case helped to minimize unpleasant noises, knocks and rattles during the operation of UAZ trucks.

Despite the fact that UAZ is a true pensioner of the domestic auto industry, these all-wheel drive vehicles have a dozen models that differ in their design features and gearbox.

In UAZ vehicles, the gearbox can be both four-speed and five-speed. Despite a respectful list of features and specifications, these gearboxes differ from each other in one indisputable fact: four-speed gearboxes are interchangeable, despite the fact that they may differ gear ratios. A five-speed gearbox should be bought very carefully - it cannot replace another modification.

The checkpoint needs scheduled diagnostics and timely repairs to keep the vehicle agile and safe. Screaming signs for repair can be considered:

⦁ The appearance of unpleasant knocks, rattles, vibrations during gear shifting.

⦁ Oil leakage.

⦁ Jamming of the gear lever in one mode or in all.

⦁Jerky gear shifting.

⦁Unauthorized switching to neutral mode.

By itself, the UAZ car is hardy - it is designed for high loads, off-road, driving on an icy road and transporting bulky goods. However, this creation of Ulyanovsk car factory, like most other cars, needs timely and high-quality maintenance, regular diagnostics and topping up of oil, the use of quality parts and lubricants, as well as a calm or professional driving style.

Jerky shifting for no apparent reason provokes mechanisms to work with double the shock load, which is why they wear out faster. The cause of the malfunction can be determined by disassembling and troubleshooting the gearbox in a reliable and proven car service.

Photo report of disassembly and repair of the UAZ HUNTER gearbox

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